Harrow



3 Sheets-Sheet 1'.

(No Mode.)

E. V. CALDWELL.

HARROW. l

Patented Feb. 5, 1884.

(No Model.) 3, Sheets- Sheet 2.

E. V. CALDWELL.

8 ARROW No. 292,985. y Patented Feb. 5,1884.

WITNESSES: Y INVENTQR QB v Bf Y Y l Y Vaorvzey., l

(No Model.) 3 sheensmsheet '3.

L E. V. CALDWELL.

HARROW. 10.292.985 l Patented 11610.5, 1884.

Fly.

INVENTOR N. PUERS Phumumgmpmr, washington. IIJ:4

l U-siren STATES Y PATENT Fries.

HARRow.

SPECIFICATION forming part` of Letters Patent No. 292,985, datedFebruary 5, 1884,

` Application tiled May 5, 1883.V (Xo model.)

the form of the harrow when used as a cultivator or as a double sideharrow. Fig. 4 shows the harrow in form when used as a rake; Fig. 5, inthe form of a single side harrow. Fig. 6 is an enlarged perspective viewof the harrow-tooth.

The object of the present invention is to provide an adjustablecombination-harrow capable of having all its-parts detached or changedso as to assume a proper form and shape desirable for use as 'a harrow,cultivator, rake, pulverizer, cotton thinner or blocker, &c.; and itconsists of a draft-beam having at its rear the two sets of transversearms,

with removable tooth-beams hinged to said arms, provided with teeth onthe front beams forwardly inclined, and the teeth on therear beamsrearwardly inclined, and with an adjusting rod and clamp for regulatingthe same at any angle, all of which will now be set forth in detail.

In the accompanyingdrawings, A represents the draft-beam, and B Bcross-arms at the rea-r end, located a short distance from each other. Iprefer to have one of the crossarms gained into the beam on the upperside, and a similar arm gained into the beam on the under side, and thetwo secured together and to the beam by a single bolt, C. The rear 'armsare preferably somewhat longer than the forward arms. Suitable handles,D, are secured to the rear end of the beam A, and project upwardly andbackwardly, so as to be in convenient position to be grasped by theoperator.

E E represent the branching tooth-beams, which are hinged at their innerends to the arms B B, as shown by the bolts at F. The outer ends ofthese beams are connected by the links G.

I-I represents an adjusting rod or bar running across from thetooth-beam on one side to the similar beam onthe other side. Thisadjusting-bar is so arranged that the beams E E may be projected out atnearly right angles to the draft-beam, or they may incline rearwardly,and when adjusted the central clamp, I, will hold the same in position.

Projecting upwardly from the clamp I are branching or radiating arms J,the upper ends of which are attached to the handles D for supporting thesame.

K is a seat secured at its rear end to the post L, and supported at itsforward end on the rods or legs M, which project upwardly from the beamsE.

The teeth UN are triangular in cross-section and bent centrally, asshown, the upper half, O, being vertical when in position, and the lowerhalf, O. inclined either forwardly or rearwardly. rlhe upper end isscrew-thread ed and provided with a shoulder, so that when thethreadedend is placed through the beam and a nut put thereon the tooth can befirmly held to the beam. As will be observed in Figs.

l and 2, the lower limbs, O', of the teeth on the two forward beams, E,incline forwardly, whereas the lowerlimbs of the teeth on the two rearbeams, Il', incline rearwardly. By their disposition. the soil is moreeffeetually pulverized than by having the teeth straight; and it is alsoobvious that the forward teeth will more easily penetrate the soil andstir up the same, while the inclined dragging shape of the rear teethinsures pulverization.

To convert the harrow into acultivator, the rear beams, E, are removed,and the ends of the adj Listing-rod l-I attached to the outer ends ofthe forward tooth-beams, E, as shown in Fig. 3. Ilhe beams E may beinclined at any angle to suit the requirements.

To provide a rake, the parts forming the adjnstable bar II are separatedand one of their ends secured to a bolt on the forward end of the beam,and the rear ends of the separated bars II secured to the forward beams,E. The beams E are secured to the forward arms B and projected out atright angles, the rear beams, E', being removed. The forwardinclination. of the teeth on the beam E causes them t-o act properly forraking purposes.

IOO

Fig. 1 represents this forni to the best advan- I on the front beamsforwardly inclined, and tage. To convert it into a single side harrowthe teeth on the rear beams rearwardly inor eultivator, only one of theforward beams, olined, and with the adjusting-rodHand olarnp 15 E, isused, and one of the sections of the ad- I, substantially as herein setforth.

5 justing-rod H. The latter being` slotted or In testimony that I claimthe foregoing I made in the form of a link permits the b eam havehereunto set iny hand, this 31st day of E to be thrown at any angle. yMarch, 1883, in the presence of witnesses.

what I 01mm as new 1S I EDWIN v; CALDWELL.

The combination of the draft-beam A, havl 1o ing,` at the rear end thetwo sets of transverse IVitliesses:

arms B B, with the removable tooth-beams E I. C. SHRADEP, E', hinged tosaid arms, provided with teeth l-I. C. PHILLIrs.

